# Copyright 2018 Maco
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from tornado import gen
from blockchain.handler.base import BaseHandler, FrontendHandler, route
from blockchain.common.util import request
from blockchain.common import constants


@route(r'/')
class IndexHandler(BaseHandler):

    def get(self):
        self.render('index.html')


@route(r'/proxy')
class HttpProxyHandler(FrontendHandler):

    @gen.coroutine
    def get(self):
        url = self.get_arg('url')
        resp = yield request(url)
        if resp and resp.code == constants.CODE_OK:
            if isinstance(resp.body, bytes):
                data = resp.body.decode()
            else:
                data = resp.body
            self.success(data=data)
        else:
            self.failure('Bad request.')
